Experimental Study on Bearing Capacity of Large-Diameter Cast-in-Place Piles in High-Rise Building Projects
In this paper,taking a high-rise building project as an example,the bearing capacity test of large-di-ameter cast-in-place pile is carried out to ensure that the high-rise building has better stability.This study relies on the overload reaction system to gradually apply static load to pile failure through jacks,after each stage of loading is completed,the calculated deformation of pile is measured at 5 min,10 min and 15 min respectively,and the results are recorded and analyzed.The results show that the ultimate bearing capacity of the five piles is different,the maximum load value is up to 15 000 kN,while the minimum load value is 750 kN.The bearing ca-pacity of large-diameter cast-in-situ piles is borne by both side resistance and end resistance,and the bearing capacity of cast-in-situ piles selected in the test can meet the relevant requirements.